Fix autofocus.

Thanks to xet7 !

client/lib/autofocus.js

@@ -1,13 +1,56 @@
 // Native replacement for mquandalle:autofocus package
 // Handles autofocus attribute in dynamically rendered Blaze templates
-import { Template } from 'meteor/templating';
+import { Meteor } from 'meteor/meteor';
 import { Tracker } from 'meteor/tracker';
 
-Template.body.onRendered(function() {
-  Tracker.afterFlush(() => {
-    const el = this.find('[autofocus]');
-    if (el && typeof el.focus === 'function') {
-      el.focus();
+// Use MutationObserver to watch for elements with autofocus attribute
+Meteor.startup(() => {
+  // Function to focus autofocus elements
+  const focusAutofocusElements = () => {
+    const elements = document.querySelectorAll('[autofocus]');
+    if (elements.length > 0) {
+      // Focus the last one (most recently added)
+      const el = elements[elements.length - 1];
+      if (el && typeof el.focus === 'function' && document.activeElement !== el) {
+        setTimeout(() => {
+          el.focus();
+          // For textareas and text inputs, also select the content if it exists
+          if ((el.tagName === 'TEXTAREA' || (el.tagName === 'INPUT' && el.type === 'text')) && el.value) {
+            el.select();
+          }
+        }, 50);
+      }
+    }
+  };
+
+  // Watch for DOM changes
+  const observer = new MutationObserver((mutations) => {
+    let shouldFocus = false;
+    mutations.forEach((mutation) => {
+      mutation.addedNodes.forEach((node) => {
+        if (node.nodeType === 1) { // Element node
+          if (node.hasAttribute && node.hasAttribute('autofocus')) {
+            shouldFocus = true;
+          } else if (node.querySelector) {
+            const autofocusChild = node.querySelector('[autofocus]');
+            if (autofocusChild) {
+              shouldFocus = true;
+            }
+          }
+        }
+      });
+    });
+    if (shouldFocus) {
+      Tracker.afterFlush(focusAutofocusElements);
     }
   });
+
+  // Start observing
+  observer.observe(document.body, {
+    childList: true,
+    subtree: true,
+  });
+
+  // Also handle initial autofocus elements
+  Tracker.afterFlush(focusAutofocusElements);
 });